Hitachi PSC-A64S Installation And Operation Manual

INSTALLATION AND OPERATION MANUAL MANUAL DE INSTALACIÓN Y FUNCIONAMIENTO INSTALLATIONS- UND BETRIEBSHANDBUCH MANUEL D’INSTALLATION ET DE FUNCTIONNEMENT MANUALE D’INSTALLAZIONE E D’USO

MANUAL DE INSTALAÇÄO E DE FUNCIONAMENTO BRUGER- OG MONTERINGSVEJLEDNING INSTALLATIE- EN BEDIENINGSHANDLEIDING

HANDBOK FÖR INSTALLATION OCH ANVÄNDING

ΕΓΧΕΙΡΙΔΙΟΕΓΚΑΤΑΣΤΑΣΗΣΚΑΙΛΕΙΤΟΥΡΓΙΑΣ

ENGLISH

ESPAÑOL

DEUTCH

FRANÇAIS

ITALIANOPORTUGUESDANSK

SVENSKA NEDERLANDS

Do not perform installation work, without referring to our installation manual. No realice la instalación de este equipo, sin antes consultar este manual de instalación. Bei der Installation unbedingt die Hinweise in der Installationsanleitung beachten. Consulter notre manuel avant de réaliser une quelconque installation. Realizzare l’installazione, seguendo quanto indicato in questo manuale. Nao inicie os trabalhos de montagem, sem consultar o nosso manual de montagem. Udfor ikke installationsarbejder uden forst at donsultere vores vejledning. Voer geen enkele handeling uit om de apparatuur alvorens deze hadleiding te hebben doorgelezen. Utför inte nagra installationsarbeten utan att först läsa var installationsmanual Μην ήσετε στην εγκατάσταση, χωρίς πριν να έχετε συμβουλευθεί αυτo το εγχειρίδιο εγκατάστασης

PSC-A64S

CENTRAL STATION

SAFETY SUMMARY

ENGLISH

1. SAFETY SUMMARY

 DANGER:

DO NOT pour water into the central station. This product is equipped with electrical parts. If poured, it will cause a serious electrical shock.

 WARNING:

DO NOT perform installation work and electrical wiring connection by yourself. Contact your distributor or dealer of HITACHI and ask them for installation work and electrical wiring by service person. When performing the insulation test, withstand voltage test and so on, ensure to remove the FG terminal connection of TB1. If performing aforementioned test with the FG terminal connected, the malfunction will occur. DO NOT turn OFF the power supply within 3 minutes after operation by the controller. It may cause malfunction.

 CAUTION:

 DO NOT install the indoor unit, outdoor unit, central station and cable at such places as;

- where there is oil vapor and the oil is dispersed

- where the hot springs are near (in a sulfuric environment)

- where generation, flowing, staying or leaking of flammable gas is detected

- where the sea is near (in the salty environment)

- an acid or alkaline environment

 DO NOT install the indoor unit, outdoor unit, central station and cable within approximately 3

meters from strong electromagnetic wave radiators such as medical equipment. In case that the central station is installed in a place where there is electromagnetic wave radiation, shield the controller and cables by covering with the steel box and running the cable through the metal conduit tube.



In case that there is electric noise at the power source for the indoor unit, provide a noise filter.

2. INSTALLATION WORK

 CAUTION:

Follow the national regulations for the right assembly of the PSC-A64S in the wall.

2.1. SELECTION OF INSTALLATION PLACE

 Select a suitable place for handling and determine the installation place of the controller with the

customer’s acceptance.

 Do not install the central station at such places as;

- where children can touch

- where the air from the air conditioner is directly discharged

2.2. BEFORE INSTALLATION

This packing contains the following parts:

GROUP

HITACHI

Central Station

2 screws M4x16L For fixing the Holding Bracket onto the wall

INSTALLATION WORK

2.3. INSTALLATION SPACE

In case of installing the central stations in the vertical direction, keep a distance more than 50mm between the central stations vertically. If the distance is insufficient, the front cover of the central station can not open wide enough.

2.4. INSTALLATION PROCEDURES

1. Insert the edge of the screwdriver into the slot parts at the bottom of the case, push and turn the screwdriver and remove the control part from the power supply part. Do not insert the screwdriver into the nail near the slot part, or the nail will be damaged.

2. Attach the power supply part to the switch box.

3. Attach the control part onto the power supply part. At first, attach the upper side, and then the lower side.

More than 50 mm

Slot Part

Control Part

Power Supply Part

Nail

Figure Seen from Bottom Side

Slot Part

Screw Drive

pprox. 6mm

Control Line

Power line

Screw

(x2)

Do not run the power line and the control line through the same conduit tube.

Switch Box with Cover

(Field-Supplied)

Power Supply

GROUP

ELECTRICAL WIRING

ENGLISH

3. ELECTRICAL WIRING

3.1. ELECTRICAL WIRING

Up to 8 Central Stations can be connected to the H-LINK (Control line). Use the 2-core cable of 0.75-1.25 mm

or the 2-core twist pair cable (Max. 1.000 m) for the transmission cable for the central station, for the outdoor unit and between indoor units (DC5V). The maximum total length of the cables shall be within 1.000 m.

3.2. SETTING OF DIP SWITCH SET THE DSW1 AS SHOWN BELOW.

Address setting is required when the central station (Max. 8 units) is connected on H-LINK (Control line). (The setting of dip switches is all OFF before shipping.)

Setting of DSW

Pin Nº Contents

OFF ON

Remarks

1 2 3

For address setting

Refer to the description (as shown in page 4)

For connecting plural central stations with HLINK (control line), the adress setting for each central station is required

DSW1

Simultaneous use of other central controller

NO YES

When using the following central controllers simultaneously, set the DSW1-4 pin ON

-CS NET

-CS NET-WEB

External Input Function Changeover Operation Stoppage Level/Pulse

Level Pulse

External Input Function Changeover Demand / Emergency Stop

Demand

Emergency

Stoppage

-Available only when the DSW2-1 pin is OFF.

-Pulse Stop when the DSW2-1 pin is ON.

3 Not prepared - - Set OFF

DSW2

4 H-LinkII Adaptive Adaptive Non-Adaptive

Set according to the item “Judgment of H-LINKII Adaptive” (shown in page 5)

Remote Control

Switch

Outdoor

Unit

Twist Pair Cable

with shield 0,75mm

To be connected to the terminal board

and p of indoor

unit or outdoor unit

Central Station

Terminal

Board

TB1

Power Supply

(AC 220V or

240V)

To TB2 of Central Station

H-LINK (Control line)

Indoor Unit

Terminal

Board

TB2

ELECTRICAL WIRING

 DSW1 (Address Setting)

Address 0 Address 1 Address 2 Address 3

1 2 3 4

Address 4 Address 5 Address 6 Address 7

1 2 3 4

NOTE:

When using the central station PSC-5S and PSC-A64S together in the same HLINK (control line) system, set the DSW1 not to be overlapped.

Divide the power line for the central station from the main power line by a pull box as shown in the figure.

 CAUTION:

- Check to ensure that the wiring is correct. Incorrect wiring may cause malfunction of the central

station.

- Turn OFF the power supply of the air conditioner and the central station when performing the

wiring work. If the wiring work is performed while the power supply of the central station is being supplied, it may cause malfunction of the central station.

- DO NOT run all the transmission cable for the central station along the power line and other

transmission cables, or malfunction may occur due to the noise, etc. If the transmission cable for the central station is required to be run along the power line and other transmission cables, separate the cable more than 30 cm away from other cables, or run the cable through a metal tube and earth the tube.

- In case of applying high voltage to the TB2, the fuse on the PCB is blown out.

In such a case, firstly correct the wiring to TB1, and then set Nº.2 pin ON.

Pull Box

Indoor Unit

Central Station

To Outdoor Unit or Breaker

220V or 240V

DSW3 (Fuse Recover)

GROUP SETTING

ENGLISH

 Judgment of H-LINKII Adaptive

NOTE:

(*1): The above “other central controllers” do not include PSC-5RA and PSC-5HR. (*2): Refer to the installation manual of other central controllers for the setting contents.

4. GROUP SETTING

 GROUP

Minimum unit for operation of Central Station. One remote control switch group is considered as one group under the same control. The Central Station can control up to 64 groups (4 zones x 16 groups).

 ZONE

Operation unit with Plural Groups. Up to 16 groups as maximum can be set in one zone. The central station can control up to 4 zones.

 REMOTE CONTROL SWITCH GROUP

Unit of plural indoor units (max. 16 units). Connected with Transmission Line of Remote Control Switch. In this group the indoor units are under the same control setting.

START

YES

Other central controller is connected in the same H-LINK (control line) system (*1)

All models of other connected central controllers are PSCA*** or HC-A*** (*1)

The setting of other connected central controllers are all H-LINKII adaptive (*2)

YES

H-LINKII adaptive DSW2-4 Pin OFF

H-LINKII Non-Adaptive DSW2-4 Pin ON

H-LINKII adaptive DSW2-4 Pin OFF

GROUP SETTING

 CAUTION:

When setting the remote control switch group without transmission line between indoor units, the indoor unit connected with the remote control switch shall be set as master unit. If the setting of the master unit is wrong, the group can not be controlled with the central station.



Check for connecting condition of air conditioner

After completion of electrical wiring work and test running of the air conditioner, turn ON the power supply of the central station. (Ensure to perform the test runing of the air conditioner before turning ON the power supply of the central station). In case that group setting is not performed, the indication of the central station is as shown below for checking indoor unit connection after turning ON the power supply.

NOTE:

The checked number of connected indoor units may be more than the actual number according to the condition of transmission. After the connection check, the indications of “GROUP” and ”SET TEMP.” may be “- -”temporarily. When the “63” alarm is indicated, the setting of H-LINKII adaptive is wrong. Check for the setting of the central station and other central controller used together.

Central station

Outdoor unit

Indoor unit

Remote Control Switch

Group

Zone

One remote control switch group is considered as one group

The remote control switch group with one indoor unit is also considered as one

rou

As for the indoor unit without remote control switch, one indoor unit is considered as one group.

Completion of connection check

In case of less than 16 indoor units connected. (Set automatically as of zone 1)

In case of more than 17 indoor units connected.

Refrigerant cycle on connection check

Number of checked indoor units connected in refrigerant cycle on connection check

GROUP SETTING

ENGLISH

4.1. GROUP SETTING PROCEDURE

- The group setting consists of the master unit setting and the slave unit setting. The indoor unit,

which is connected directly to the remote control switch, is set as the master unit, and the indoor unit connected with the transmission line is set as the slave unit.

- Without the remote control switch, the control by the remote control switch group is not

available. Therefore, in this case, one indoor unit is set as one group. (Only the master unit is set without the slave unit).

- When setting the remote control switch group without transmission line between indoor units,

the indoor unit connected with the remote control switch shall be set as master unit.

- When using the remote control switch (PC-AR(T)), the half-sized remote control switch

(PC-ARH) or receiver kit (PC-ALH∗), after the setting of master unit, the central station automatically set the slave unit.

- Check for the setting state by the slave unit setting mode.

4.1.1. SYSTEM OF LESS THAN 16 INDOOR UNITS CONNECTED, REFRIGERANT SYSTEM

ADRESS AND INDOOR UNIT ADRESS.

The group is automatically set as zone Nº 1 by the indoor unit address regardless of the refrigerant cycle address. Set the indoor unit address without duplication of address.

Central Station

The setting “0” to “15” or “0” to “F” of indoor unit RSW is corresponding to the group Nº. “1” to “16” of central station. (The setting can be changed by the procedure of “4.3. System of more than 17 indoor units connected”)

Setting of Indoor Unit

RSW

Group Number

0 1 2 3 4 1 2

- When using the remote control switch (PC-AR(T)) or the half-sized remote control switch

(PC-ARH) and the receiver kit (PC-ALH∗), the indoor units are automatically recognized as the slave unit of the indoor unit 2 and set to the group 3. (The setting of the slave unit is not required. However, the contents of the setting should be checked.)

- When using other controllers than the described above, the indoor unit can not be

recognized as the slave unit automatically, and set as the master unit of group 5. In this case change the setting to the slave unit of the group 3 according to the above "Group Setting Procedure".

GROUP SETTING

4.1.2. SYSTEM OF MORE THAN 17 INDOOR UNIT CONNECTED

In this case, the group setting by central station is required. Group setting is for master unit (directly connected to remote control switch) and slave unit (connected by extension cable). In case that the remote control switch is not connected, the group setting by remote control switch is not available and only one master unit is controlled as one group. In case of up to 16 indoor units connected, the group setting is automatically performed as described in “4.2. System of less than 16 indoor units connected, Refrigerant system address and indoor unit address”. In this case, correct the group setting by the next procedure.

4.2. SETTING OF MASTER UNIT

4.2.1. INDICATION OF MASTER UNIT SETTING MODE

When the central station is changed to the master unit setting mode, the LCD indication on the central station is as shown below. The indication of the group to be set is flickered. The refrigerant cycle Nº (hereafter called "Ref. Nº") and the indoor unit address (hereafter called "I.U. Add.") indicates the address of the indoor unit which is set as the master unit of the group to be set. The "°" indication of group flickers in case that the master unit of the group is set. When the "SET" indication appears, the indoor unit indicated on LCD is set as the master unit. In case that the master unit is not set, "- -" is indicated at Ref. Nº and I.U. Add., and the "SET" indication does not appear. *When there is one or more group with indoor unit set as master unit in the zone, the zone indication "°" turns ON.

The above figure shows that the indoor unit of Ref. Nº. "00" and I.U. Add. "02" is set as the master unit for Group 1 of Zone 1.

Central Station

Master

Slave

Master

Master Master

Refrigerant No. Setting 1 1 2 2 3 3 Indoor Unit RSW Setting 0 1 0 1 0 1 Group Number 1 2 3 4

Without Remote

Control Switch

Ref. No. of Indoor Unit to be Set (Can be changed by depressing the "

Æ" (TEMP) switch.)

"1" shows the master unit setting mode.

Group Nº. to be Set

Zone Nº. to be Set

Condition of master unit setting for each zone: (° is ON: There is any group with the master unit set./ ° is OFF: There is no group with the master unit set.)

When the "SET" indication appears, the indicated indoor unit is set as the master unit. (When "SET" does not appear, the masterunit is no

set.

)

Address of Indoor Unit to be set (can be changed by depressing the "Å" (TEMP)

switch.)

When the "CHECK" indication appears, the central station is in the check mode.

Condition of master unit setting for each group: (° is ON: The master unit is set./ ° is OFF: The master unit is not set.)

GROUP SETTING

ENGLISH

4.2.2. PROCEDURE OF MASTER UNIT SETTING

a. Screen change for Master Unit Setting keep

depressing the "CHECK" switch for 3 seconds during all the indoor unit is stopped (with "RUN" indicator OFF). The "CHECK" indicator turns ON, and it shows the state is changed to the CHECK mode. In addition, "1" (master unit setting mode) is turns ON at the 7-segment indicator for checking.

b. Select Zone to be set depress the "ZONE"

switch, and the flickering indication of zone Nº is changed in order as shown below.

The above figure shows the case of selecting Zone "2".

c. Select of Group Nº. to be set select the group

to be set by depressing the "GROUP" switch.The flickering indication of group Nº is moved in order as shown below every time the "GROUP" switch depressed.

When the main unit of the selected group is already set, the Ref. Nº and I.U. Add. of the main unit already set are indicated and the "SET" indication appears.

The above figure shows the case of selecting Zone "2" and group “5”.

d. Selection of Indoor Unit to be set select the

refrigerant system address and indoor unit address to set. The refrigerant system

address is changed by depressing "

Æ"

(TEMP) switch and the indoor unit address is changed by depressing "

Å" (TEMP) switch in

order as shown below. In this case, the switch is kept depressing, and the indication of the refrigerant system address or the indoor unit address is fast-forwarded.

The above figure shows the case of selecting Ref. Nº. "3" and I. U. Add. "6".

GROUP SETTING

• ATTENTION:

- When the indication of Ref. Nº is “- -”, the indication of I.U. Add. is also “- -”. In such a case,

I.U. Add. can not be changed although the “

Å” (TEMP) switch is depressed.

- Ref. Nº with no indoor unit connected and I.U. Add. not connected are not indicated.

- The indoor unit already set as the master unit is not indicated.

e. Setting Procedure

Depress the “RUN/STOP” switch after selecting indoor unit, the indicated unit is set as the master unit, and the “°” and “SET” indications appear. The "°" indicator of zone turns ON when there is one or more group with the master unit set.

f. Perform the master unit setting procedure b. to e.

for each group and zone.

g. After completion of the master unit setting,

change the mode to the standard state by depressing "RESET" switch.

 CAUTION:

- When there is any group in operation (with "RUN" indicator ON), the "CHECK" mode is not

available.

- Only one indoor unit can be set as the master unit in one group. Other indoor unit can not be set

as the master unit for the group with the master unit set already. For setting the master unit as the master unit for another group, cancel the present master unit setting and perform the setting for another group.

- In case that there are indoor units with auto-louver and indoor units without auto-louver in the

same group, set the indoor unit with auto-louver as the master unit. If the indoor unit without auto-louver is set as the master unit, the auto-louver setting is not available for all the units of the group.

- When setting the remote control switch group without transmission line between indoor units,

the indoor unit connected with the remote control switch shall be set as master unit.

4.2.3. CANCELLATION OF MASTER UNIT SETTING

a. Screen change for cancellation of Master Unit

cetting keep depressing the "CHECK" switch for 3 seconds during all the indoor unit is stopped (with "RUN" indicator OFF). The "CHECK" indicator turns ON, and it shows the state is changed to the CHECK mode and "1" (master unit setting mode) turns ON at the 7-segment indicator for checking.

b. Select of Zone to be canceled depress the "ZONE"

switch and the "GROUP"  switch, and select the zone and the group to cancel.

c. Cancel the slave unit setting.

Depress the "RUN/STOP" switch and the master unit is canceled.The "SET" indicator and the "°" indicators of group turn OFF. The "°" indicators of zone turns OFF when there is one or more group with the master unit set.

d. Perform the cancellation of master unit setting

procedure b and c for each zone and group.

e. After completion of canceling the master unit

setting, change the mode to the standard state by depressing "RESET" switch.

GROUP SETTING

ENGLISH

4.3. SETTING OF SLAVE UNIT

When using the remote control switch (PC-AR(T)), the half-size remote control switch (PC-ARH) or receiver kit (PC-ALH∗), after the setting of master unit, the central station automatically set the slave unit. Check for the setting state by the slave unit setting mode.

4.3.1. INDICATION OF SLAVE UNIT SETTING MODE

When the central station is changed to the slave unit setting mode, the LCD indication on the central station is as shown below. The indication of the group to be set is flickered. The Ref. Nº and I.U. Add. indicates the address of the indoor unit with the smallest address among the slave units of the group to be set. The “° ” indication of group flickers in case that the slave units of the group are already set. In case that the slave units are not set, “- -” is indicated at Ref. Nº and I.U. Add.

4.3.2. PROCEDURE OF SLAVE UNIT SETTING

a. Screen Change for slave unit setting.

Keep depressing the "CHECK" switch for 3 seconds during all the indoor unit is stopped (with "RUN" indicator OFF). The "CHECK" indicator turns ON, and it shows the state is changed to the “CHECK” mode. When "1" (master unit setting mode) is turns ON at the 7-segment indicator for checking, depress the "CHECK" switch again, and then the checking indication is changed to "2" (slave unit setting mode).

“2” shows the slave

unit setting mode.

Ref. Nº of Indoor unit to be set. (Can be changed by depressing the “

∇” (TEMP) switch.)

When the “SET” indication appears, the indicated indoor unit is set as the slave unit. (When “SET” does not appear, the slave unit is not

set.)

Only the zone including the group with the master unit already set is indicated. The zone to be set is flickered.

When the “CHECK” indication appears, the central station is in the check mode.

"°" shows the zone and the group with indoor units to be set (The above figure shows that the indoor unit of Ref. Nº.1 and I.U. Add. 2 is set as the slave unit of zone 1,

roup 2).

Address of Indoor unit to be set. (Can be changed by depressing the “

Δ ”

(TEMP) switch.)

GROUP SETTING

b. Select the refrigerant system address and

indoor unit address to set. The refrigerant system address is changed by depressing "

∇" (TEMP) switch and the indoor unit

address is changed by depressing "Δ" (TEMP) switch in order as shown below. In this case, the switch is kept depressing, and the indication of the refrigerant system address or the indoor unit address is fastforwarded.

The above figure shows the case of selecting Ref. Nº. "1" and I. U. Add. "2".

• ATTENTION:

A. Ref. Nº with no indoor unit connected and I.U. Add. not connected are not indicated. B. When the selected unit is already set as slave unit, the zone and the group Nº

indication "°" of the unit and "SET" indication appear.

C. The indoor unit already set as the master unit is not indicated.

c. Select of Zone to be set.

Depress the "ZONE" switch, and the flickering indication of zone Nº is changed in order as shown below.

The zone, in which there is no group with the master

unit already set, is not indicated.

The above figure shows the case of selecting Zone “2”.

d. Select of Group to be set

Depress the "GROUP"  switch, and the flickering indication of group Nº is changed in order as shown below.

The group, in which the master unit is not set, is not

indicated.

The above figure shows the case of selecting Zone “2” and group “2”

e. Setting Procedure

Depress the "RUN/STOP" switch after selecting zone and group, the slave unit is set. The "SET" indicator and the "°" indicator of group turn ON.

f. Perform the slave unit setting procedure “b”

to “e” for each group and zone.

g. After completion of the slave unit setting,

change the mode to the standard state by depressing "RESET" switch.

 CAUTION:

- Up to 15 slave units can be set in one group (Max. 16 units (including the master unit) in one

group).

- For changing the setting of slave unit to another group, cancel the present slave unit setting

and perform the setting for another group.

- In case that all the units are set as the master unit, the central station can not be changed to

the slave unit setting mode.

- When there is any group in operation (with "RUN" indicator ON), the "CHECK" mode is not

available.

GROUP SETTING

ENGLISH

4.3.3. CANCELLATION OF SLAVE UNIT SETTING

a. Screen Change for Cancellation of Slave

Unit Setting. Keep depressing the "CHECK" switch for 3 seconds during all the indoor unit is stopped (with "RUN" indicator OFF). The "CHECK" indicator turns ON, and it shows the state is changed to the CHECK mode. When "1" (master unit setting mode) is turns ON at the 7-segment indicator for checking, depress the "CHECK" switch again, and then the checking indication is changed to "2" (slave unit setting mode).

b. Select the refrigerant system address and

indoor unit address to cancel. The refrigerant system address is changed by depressing "

∇" (TEMP) switch and the indoor unit

* The Ref. Nº and I.U. address of the indoor unit

unconnected are not indicated.

* The Ref. Nº and I.U. address of the indoor unit set

as the master unit are not indicated.

The above figure shows the case of selecting Ref. Nº. "1" and I. U. Add. "2".

c. Cancellation of Slave Unit Address.

Depress the "RUN/STOP" switch and the slave unit is canceled.The "SET" indicator and the "°" indicators of zone and group turn ON.

d. Perform the cancellation of slave unit setting

procedure b and c for each intended refrigerant system and address.

e. After completion of canceling the slave unit

setting, change the mode to the standard state by depressing "RESET" switch.

INPUT/OUTPUT FUNCTION

5. INPUT/OUTPUT FUNCTION

The central station has two input functions and two output functions as shown below.

1. Simultaneous Operation/Stoppage. This function is for operating / stopping all the indoor units of the group, which is set by the central station, by the external contact signal.

2. Simultaneous Operation. This function is for operating all the indoor units of the group, which is set by the central station, by the external pulse signal.

3. Simultaneous Stoppage. This function is for stopping all the indoor units of the group, which is set by the central station, by the external pulse signal.

4. Emergency Stop signal connection function. This function is for stopping all the air conditioners connected with the central station by the external emergency stop signal.

* When other central controller is used together with, even in the state of emergency stop, the

RUN/STOP operation by other central controllers is available.

5. Demand Control Function. The peak-cut according to the electricity is available by the control of air conditioners with the control signal from the demand control. The group set by the central station is operated by the demand signal as follows.

Table A. Input / Output Setting Mode and Connector

Demand signal ON (1*) Demand signal ON (2*)

Demand 1

Indoor Unit Stop (Remote Control Inhibited)

Demand 2 (*3,*4)

Back to the former state of operation

Demand 3 (*3,*5)

COOL, DRY￫FAN

HEAT

￫STOP

(Remote Control Inhibited)

The setting temperature is set as follows; COOL, DRY...28

ºC

HEAT...20ºC

*1: The control is performed every 15 seconds for the zone, which is subject to demand

control, in descending order of the zone Nº

*2: The control is performed every 15 seconds for the zone, which is subject to demand

control, in ascending order of the zone Nº *3: During automatic cooling/heating operation, the activation of "Demand 1" is executed. *4: For the group with the optional setting of fixing operation mode, the activation of "Demand

1" is executed. *5: For the group with the optional setting of fixing operation mode or fixing set temperature,

the activation of "Demand 1" is executed.

6. Simultaneous Operation Output. This function is for outputting signal outward in the case where there is any air conditioner in operation in the group set by the central station.

INPUT/OUTPUT FUNCTION

ENGLISH

7. Simultaneous Alarm Output. This function is for outputting signal outward in the case where there is any air conditioner in abnormal condition in the group set by the central station.

The input function is set by DSW2 as shown in the table below:

DSW Pin Nº

Function

1 2 3 4

Remarks

Simultaneous Operation/Stoppage (Level)

OFF * OFF OFF CN2 1-2 Pin Contact Connection

Simultaneous Operation/Stoppage (Pulse)

ON OFF OFF OFF CN2 1-2 Pin Contact Connection

Emergency Stop OFF ON OFF OFF CN2 2-3 Pin Contact Connection

Demand 1~3 OFF OFF OFF OFF CN2 2-3 Pin Contact Connection

*Both ON and OFF setting are available. Set ON or OFF by the emergency stop or the demand function.

Specifications of Required Components:

- Input: DC12V,10 mA Non-voltage A contact (pulse with more than 300 ms)

- Output: OMRON MY Relay

- Cable: PCC-1A

As for demand input, the group to be controlled can be set when signal is input.

5.1. DEMAND SETTING PROCEDURE

1. Changing to Check Mode. Depress the “CHECK” switch for more than 3 seconds, and the central station is changed to the

check mode.

* When there is any group in operation (with "RUN" indicator ON), the "CHECK" mode is not available.

Cable with Connector (Option): PCC-1A

Cable more than 0.5 mm

(Field-supplied, max. length: 70m)

CN2

CN3

RYa

Non-voltage A contact Input

INPUT/OUTPUT FUNCTION

2. Changing to Demand Setting Mode. Depress the “CHECK” switch and change the 7-segment indication for check to “5” (Demand

Setting Mode). The LCD indication of the central station is as shown below.

3 Selection of Demand Function.

a. Select the demand function by depressing the

"LOUVER" switch.

b. Depress the "RUN/STOP" switch, and the

flickering indication of louver angle turns ON.

By depressing the "LOUVER" switch, the indication of louver angle is changed as shown in right figure.

4 Selection of Group To Be Set

The demand function can be set for all the indoor units, each zone or each group. The "°" indication of "GROUP", for which the demand setting is already set, turns ON. In the case where there is one or more group with demand setting in the zone, the "°" indication of "ZONE" section turns ON.

- Simultaneous Setting for all Indoor Units

a. Depress the "ZONE" switch to make all the zone

Nº. flicker. Then, the minimum refrigerant system address and the minimum indoor unit address of the indoor unit, which is set as the master unit, in all groups are indicated.

- Setting for each Zone

a. Depress the "ZONE" switch and select the zone

to set.

b. Depress the "GROUP"  switch to make the

group Nº to set flicker. Then, the minimum Ref. Nº and the minimum I.U. Add. of the indoor unit set as the master unit of all groups are indicated.

[Zone Selection]

Depress the "ZONE" switch, and the flickering indication of zone Nº is changed in order as shown below.

* Only the zone Nº to set is indicated. * When selecting the all flickering state (Simultaneous

Operation for all Indoor Units), the groups to set are automatically fixed at the all flickering state. For selecting the group, select the indication state except all flickering.

- Setting for Each Group

a. Depress the "ZONE" switch and select the zone

to set.

b. Depress the "GROUP"  switch to select the

group to set. Then, the Ref. Nº and I.U. Add. of the indoor unit set as the master unit of selected group are indicated.

[Group Selection]

Depress the "GROUP"

switch, and the

flickering indication of group Nº is changed in order as shown below.

* Only the group Nº to set is indicated.

“5” shows the demand setting mode.

Ref. Nº. of Indoor Unit Set as Master Unit of Group To Be Set

Address of Indoor Unit Set as Master Unit of Group To Be Set

The state of demand setting of the indicated indoor unit is indicated.

"DEMAND" ON: Demand is set. "DEMAND" OFF: Demand is not set.

Only the group with the master unit already set is indicated. The group to be set

is flickered.

The state of demand setting of each group is indicated.

° ON: Demand is set. ° OFF: Demand is not set.

Demand function

The state of demand setting of each zone is indicated. ° ON:There is one or more group with demand setting in

the zone.

° OFF:There is no group with demand setting in the zone.

When the "CHECK" indication appears, the central station is in the check mode.

Only the group with the master unit already set is indicated. The group to be set is flickered.

All flickering

OPTION SETTING

ENGLISH

5. Setting Procedure Depress the “RUN/STOP” switch and the selected

group is set with demand control, and the “

°” and

“DEMAND” indications appear. In the case where there is one or more group with demand setting in the zone, the "

°" indication of

zone turns ON. (Every time the “RUN/STOP” switch is depressed, the demand control is set and canceled alternately.)

6. OPTION SETTING

6.1. CHANGING TO OPTION SETTING MODE

 Changing to Option Setting Mode

1. Depress the “CHECK” switch for more than 3 seconds while all the groups are stopped. The

central station is changed to the option setting mode and the “CHECK” indication appears, and “1” (Master Unit Setting Mode) is indicated on the 7-segment for check.

•ATTENTION:

When there is a group in operation, the central station can not be changed to the check mode.

2. Depress the “CHECK” switch and change the indication of the 7-segment.

7-Segment Function

A Fixing Operation Mode b Fixing Setting Temperature c Fixing Cooling Only d Fixing Air Flow E Auto COOL / HEAT

3. Depress the “RESET” switch and the central station is changed to the normal mode.

“°” and ”SET” Indications: ON

(

The demand control is set.

)

OPTION SETTING

 Indication of Option Setting Mode

When the central station is changed to the slave unit setting mode, the LCD indication on the central station is as shown below. The indication of the group to be set is flickered. The Ref. Nº and I.U. Add. indicates the address of the indoor unit which is set as the master unit of the group to be set. The “° ” indication of group flickers in case that the option setting is already done. When the “SET” indication appears, the indoor unit indicated on LCD is already set with the optional function.

 Setting Procedure

a. Depress the "CHECK" switch and select the setting item A – E. b. Select the group to be set by depressing the "ZONE" switch and the "GROUP" switch.

Refer to the "4.1. Group setting procedure" (page 7), for the group selection procedure.

c. Depress the "RUN/STOP" switch, the selected group is subject to option setting and

the "°" indication and the "SET" indication turn ON. When there is one or more group with indoor unit set with option in the zone, the zone indication "°" turns ON. Every time the "RUN/STOP" switch is depressed, the "°" indication and the "SET" indication turn ON and OFF alternately, and the state of option setting is changed; the selected group is to be set/not to be set with option setting.

 CAUTION:

- In case that the optional functions are set by the central station, it is required to set the same

optional functions for the group by the remote control switch.

- In case that the optional functions (items A – E as shown above) are set by the remote control

switch, it is required to set the same optional functions for the group by the central station.

- The group, which is set with both of the fixing set temperature (option setting) and

"Demand 3" function, is back to the former set temperature (before Demand ON) when the demand signal is OFF.

Ref. Nº. of Indoor Unit Set as Master Unit of Group To Be Set

"A" shows the option setting mode.

Address of indoor unit set as master unit of group to be set.

Only the zone with group as the master unit is indicated. The zone No. to set is fl ickered.

The state of option setting of each zone is indicated. ° ON: There is one or more group with option

setting in the zone.

° OFF: There is no group with option setting in the zone.

Condition of Option Setting for each Group. (° is ON: Option is set. ° is OFF: Option is not set.)

Only the group with the master unit is indicated. The group to set is

flickered.

When the "CHECK" indication appears,the central station is in the check mode.

When the "SET" indication appears, the indicated indoor unit is set with the optional function.

INITIALIZATION OF CENTRAL STATION

ENGLISH

7. INITIALIZATION OF CENTRAL STATION

The procedure for initialization of the group setting and the optional setting is as follows.

7.1. CHANGiNG TO SELF CHECK MODE

Depress the “GROUP ()” and ”MODE” switches simultaneously, the central station is changed to the self check mode. In case that there is a group in operation, the “NO FUNCTION” is indicated and the central station can not be changed to the self check mode. After changing to the self check mode, the LCD indication is changed as shown below. Then, depress the "GROUP()" and "MODE" switches simultaneously again, and the central station is changed to the initializing mode.

NOTE:

In case that the “GROUP ()” and ”MODE” switches are not depressed again, the self check operation continues.

7.2. INITIALIZATION OF EEPROM

When the central station is changed to the initializing mode, the LCD indication on the central station is as shown below. In this condition, depress the “RESET” switch, and the flickering “06” indication is changed to ON and the initialization is performed. (In case that initialization is not required, depress the “CHECK” switch, the LCD indication is automatically changed as shown below.)

"06" flickers. Depress “RESET” switch and "06" is changed to ON. In case of EEPROM initialization, it takes approximately 60–90 seconds.

To connection check

INITIALIZATION OF CENTRAL STATION

7.3. ZONE AND GROUP SETTING TABLE OF CENTRAL STATION (1)

Indoor Unit Address

00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

Fill the group number (1-4) and the group number (1-16) in the above table. Circle the unit number of the master unit.

Refrigerant number

INITIALIZATION OF CENTRAL STATION

ENGLISH

7.4. ZONE AND GROUP SETTING TABLE OF CENTRAL STATION (2)

Zone Group

Remarks

(ex. Room name)

Zone Group

Remarks

(ex. Room name)

SWITCH NAMES AND FUNCTIONS

8. SWITCH NAMES AND FUNCTIONS

 Liquid Crystal Display Selection

The figure below shows all the indications for reference.The actual display during operation is different.

 Operation Switch Section

The above figure shows the control timer with the cover opened.

When opening the cover, pull the cover toward the arrow direction.

Indication of Fan speed (Page 25,26)

Indication of Operation Mode (Page 25)

"AUTO" is indicated only when the optional function "Auto COOL/HEAT" is set.

Indication of Louver Angle (Page 26)

Timer Selection Switch

(Pag

e 29

)

Auto Louver Switch (Page 27)

Temperature Setting Switch (Page 26)

Run Indicator (Red Lamp) (Page 25)

RUN/STOP Switch (Page 27)

Fan Speed Selection Switch (Page 26)

Operation Mode Selection Switch

(Pag

e 25)

“Remote Control Switch not available” Switch (Page 28)

Indication of “NO FUNCTION”

Indication of Timer (Page 29)

Indication of Emergency Stop (Page 30)

Indication of Demand Control (Page 30)

Group Selection Switch

(Pag

e 24

)

“FILTER” Indication Reset Switch (Page 30)

Check Switch (Page 26) Do not touch. This switch is only for

Indication of Setting temperature (Page 25,26)

Indication of Alarm Code

(Pag

e 30

)

Indication of “Remote Control Switch Not Available”

(Pag

e 29

)

“ALARM” Indicator (Page 30)

“FILTER” Indicator

(Pag

e 30

)

Zone selection Switch (Page 24)

“CHECK” Indicator (Page 26)

Indication of Each Zone / Each Group Operation (Page 24,25,27)

Indication of Setting Target

(Pag

e 24, 25

)

SWITCH NAMES AND FUNCTIONS

ENGLISH

 About Zone and Group

The central station controls plural indoor units as a unit (one indoor unit is also available). The operation unit is as follows;

Group

Minimum operation unit for central station One remote control switch group is considered as one group under the same control. The central station can control up to 64 groups (4 Zones x 16 Groups).

Zone

Operation Unit consisting of Plural Groups. Up to 16 groups can be set in one zone. The central station can control up to 4 zones.

Remote control switch group

Operation unit consisting of plural indoor units connected with transmission line of remote control switch. In the remote control switch group, the indoor units are under the same control setting.

 Configuration of one and Group

 About Setting Target

The zone and the group subject to setting and monitoring are called as setting target. The central station indicates the setting target as shown below.

Indication Example 1

This indication is the example in the case where the setting target is group.The setting of the selected group is ordered.

(ex. In case of Zone 1 and Group 2)

Indication Example 2

This indication is the example in the case where the setting target is zone. The setting of all the groups set in the selected zone is ordered.

(ex. In case of All Group in Zone 1)

Indication Example 3

This indication is the example in the case where the setting target is all the indoor units. The setting of all the units (all the groups) set is ordered.

(ex. In case of All Indoor Units)

All units

Zone 1

Zone 2

Zone 4

Group 1

Group 16

Group 1

Group 16

Ref.1 – Nº 1 I.U.

Ref.1 – Nº 2 I.U.

Ref.2 – Nº 1 I.U.

OPERATION PROCEDURE

9. OPERATION PROCEDURE

9.1. SETTING TARGET SELECTION AND MONITORING OPERATION STATUS

The central station can control up to 64 groups by each group, each zone or simultaneously . (The selected setting target can be operated and the unit operation status can be monitored.)

• ATTENTION:

When changing the zone Nº by depressing the "ZONE" switch, the zone, which is not set as group, is not indicated. The group number is changed by depressing the "GROUP" switch. The group without group setting is not indicated.

Preparation 1

Supply power to the unit.

• ATTENTION:

A. Supply power to the unit more than 6 hours before unit operation for compressor protection. B. Do not cut off power during the term of using air conditioner.

Preparation 2

After the preparation for air conditioner operation is completed, turn ON the power supply of the central station.

The setting target zone and group Nº. Is indicated on the liquid crystal display.

1. Depress the "ZONE" switch. Every time the "ZONE" switch is depressed, the zone and group Nº. to be controlled is changed in the order as shown below:

When the zone is changed, the setting target group is AA (All Groups) initially. For example, depressing "ZONE" switch when the setting target is 1-02, the indication is changed to 2-AA.

Zone Nº is changed. (ex. In case of All group in Zone 3)

Only Zone Nº Already Set are indicated.

2. Depress the "GROUP" switch. Every time the "GROUP" switch is depressed, the zone and group Nº. to be controlled is changed in the order as shown below. In case of "AA", all the units are controlled simultaneously.

Group Nº is changed. (ex. In case of selecting Zone 3, group 5)

Only Group N

already set are indicated.

OPERATION PROCEDURE

ENGLISH

3. When selecting the group, the setting conditions of each group are indicated. By operating by the remote control switch, the content of the setting is indicated.

Zone show the operating conditions of each zone as follows;

- OFF ... Stoppage of All Groups in Zone

- ° ON ... Operation of One or More Group in Zone

- ° Flickering ... Failure in One or More Group in Zone

show the operating conditions of each group as

follows;

- ° Turned OFF: Stop

- ° Turned ON: Operation

- Flickering: Abnormality

The Run indicator (Red Lamp) shows the followings;

- Turned OFF: All indoor units stop.

- Turned ON: More than 1 group in operation.

- Flickering: More than 1 group in abnormal condition.

Operating Conditions of Each Group (ex. In case of "COOL" ,"HIGH" and "28ºC")

Operating Conditions of Each Zone (ex. In case of more than one group of each zone 1~3 in operation)

NOTES:

- The indication of setting temperature "- -" shows no setting of temperature.

- When the setting target group is "AA" (All Groups), the indications of operation mode, set

temperature, fan speed, louver angle and remote control switch not available are indicated only for the items which all groups are under the same setting.

- When the setting target group is "A-AA" (All Indoor Units), the indication "

" turns ON when

there is one or more group in operation in each zone, and also flickers when there is one or more group in failure in each zone.

9.2. SETTING OF OPERATION MODE

“COOL” Operation: To cool the room temperature by distributing the cooled air. “HEAT” Operation: To heat the room temperature by distributing the heated air. “DRY” Operation: To dehumidify more than standard cooling operation. “FAN” Operation: To circulate the room air.

NOTE:

The recommended temperature for each operation is as follows; “COOL” Operation: 27~29°C / “HEAT” Operation: 18~20°C / “DRY” Operation: 23~25°C

1. Depress the "ZONE" switch and the "GROUP" switch and select the setting target. (Refer to item “9.1. Setting target selection and monitoring operation status" in page 24)

The above figure shows the case of selecting "ZONE 3, GROUP 6".

2. Depress the “MODE” switch. The operation mode is changed in the following order.

FAN COOL HEAT DRY

The above figure shows the case of setting “HEAT” operation.

NOTE:

- The above indications show the case of setting operation mode for "Zone 3, Group 6". The

same setting procedure shall be performed for other groups.

- Some operation modes can not be set according to the unit model. Contact to HITACHI dealer

or your distributor for details.

- The operation mode can be set while the unit is stopped or in operation.

Operating conditions of each group (ex. In case of groups 1 ~ 5 of zone 3 in

operation)

OPERATION PROCEDURE

9.3. SETTING OF TEMPERATURE, FAN SPEED AND LOUVER ANGLE

• ATTENTION:

Do not touch the “CHECK” switch. The “CHECK” switch is only for service use.

- When the “CHECK” switch is depressed by a mistake and the central station is changed to the check

mode, depress the “RESET” switch to cancel.

1. Depress the "ZONE" switch and the "GROUP" switch and select the setting target.

(Refer to item “9.1. Setting target selection and monitoring operation status" in page 24)

The above figure shows the case of selecting "ZONE 3, GROUP 6".

Set temperature by depressing "TEMP" switch. Depressing "∇" switch, the temperature is increased by 1 °C

(Maximum: 30 °C). Depressing "Δ" switch, the temperature is decreased by 1 °C

(Minimum: 19 °C, for Cool, Dry and Fan mode, and 17 °C for Heat mode). When depressing Δ for 3 seconds at set temperature at 30 °C, or

depressing ∇ for 3 seconds at the minimum temperature, the temperature is not set and the indication of setting temperature is "--". In this case, depress Δ or ∇, the indication of setting temperature returns to the minimum temperature or 30°C.

The above figure shows the case of setting 22°C

NOTE:

The above shows the setting range for standard model. The setting temperature range may be different according to the connected unit model.

Depress the “FAN SPEED” switch. By depressing the “FAN SPEED” switch, the indication is changed in the following order;

HIGH MED LOW

The above figure shows the case of setting “HIGH” fan speed.

NOTES:

- In case of dry operation, the fan speed is automatically changed and fixed at the “LOW” fan

speed.

- In this case, the fan speed can not be changed (The indication remains at the setting condition).

<LOUVER ANGLE> Depress the "AUTO LOUVER" switch. Every time the "AUTO LOUVER" switch is depressed, the indication of the louver angle is changed. Depress the "AUTO LOUVER" switch at the position

, the indication is changed to and this indication

indicates the auto-swing. Depress the "AUTO LOUVER"

switch again, the indication is turned to

The above figure shows the case of setting auto-swing.

NOTES:

- The above indications show the case of setting operation mode for “ZONE 3, GROUP 6”.

The same setting procedure shall be performed for other groups.

- The temperature, fan speed and louver angle can be set while the unit is stopped or in

operation.

OPERATION PROCEDURE

ENGLISH

In Case of 4-Way Cassette Type (Example)

LCD

Indication

Air Louver Angle

Approx.

25°

Approx.

30°

Approx.

35°

Approx.

40°

Approx.

50°

Approx.

55°

Approx.

60°

Cooling Dry

Heat

:Recommended Angle

 NOTES:

- The fixing angle of the louver shown above is the case of 4-way cassette type indoor unit. The

fixing angle is different according to unit model. Refer to the operation manual of each model for details.

- There exists a time lag between the indicated louver position on LCD and the actual louver

angle in operation. Therefore, when fixing the louver, set the angle according to the indicated louver angle on LCD.

- When the “AUTO LOUVER” switch is depressed, the louver may not stop immediately.

• ATTENTION:

The louver angle is automatically changed during heating operation for unit control.

When heating operation is started

When dry operation is started When temperature controller is

activated

The louver angle is automatically changed.

When the discharged air temperature is increased over 30°C, the louver angle automatically return to the set position.

The LCD indication remains at the setting condition.

9.4. UNIT OPERATION

1. Depress the "ZONE" switch and "GROUP" switch and select the setting target.

(Refer to item 2 of "A. setting target selection and monitoring unit operation status" in page 18.)

The above figure shows the case of selecting "Zone 3, Group 6".

2. Depress the “RUN/STOP” switch. In case that the selected group is in operation, the group is stopped by depressing “RUN/STOP” switch. In case that the group is not in operation, the group is started by depressing the “RUN/STOP” switch.

In case of group “AA”, depress the “RUN/STOP” switch, and;

- All indoor units are stopped (when more than 1

group is in operation (Run lamp is ON)).

- All the groups are started operation (When all the

groups are stopped (Run lamp is OFF)).

The above figure shows the case of "ZONE 3, GROUP 6".

NOTES:

The above indications show the case of setting operation mode for “Zone 3, Group 6” The same setting procedure shall be performed for other groups. In case of the simultaneous operation for all groups, select the group number of “AA”.

Turned ON

Angle Range

OPERATION PROCEDURE

 Prohibiting Operation by Remote Control Switch

To prohibit the operation by the remote control switch. When this function is available, the “CENTRAL” indication appears on the LCD on the remote control switch and the operation by the remote control switch is not available.

1. Depress the "ZONE" switch and the "GROUP" switch and select the setting target. (Refer to item 2 of "A. Setting Target Selection and Monitoring Unit Operation Status" in page 18.)

The above figure shows the case of selecting "ZONE 3, GROUP 6".

2. Depress the "RMT. SW NAVL" switch. Every time the "RMT. SW NAVL" switch is depressed, the "RMT. SW NAVL" indication is turned ON and OFF alternately.

The above figure shows the case of "ZONE 3,GROUP 6" prohibited from operating by the remote control switch.

• ATTENTION:

- The above indications show the case of setting operation mode for group 4. The same setting

procedure shall be performed for other groups. In case of the same setting for all groups, select the group number of “AA”.

- Although the “RMT. SW NAVL” function is set, in case of operation by the central station, the

unit can be stopped by the remote control switch, and in this case, the unit can be started again by the remote control switch.

- For the unit without remote control switch, the “RMT. SW NAVL” function shall be set.

- In case of using together with other controllers, do not set the “RMT. SW NAVL” function.

Additionally, do not set the “RMT. SW NAVL” function by other controller or the malfunction may occur.

- In case of no setting of temperature (“- -”), the temperature can be set by the remote control

switch during the “RMT. SW NAVL” function is available.

Turned ON

OPERATION PROCEDURE

ENGLISH

 Timer Operation

To set the schedule operation “available” or “not available” by the signal from the control timer in case of connection with the control timer (PSC-A1T; Option). The schedule operation can be set “available” or “not available” individually for each unit, however, the operation schedule is all the same.

1. Depress the "ZONE" switch and the "GROUP" switch and select the setting target. (Refer to item 2 of "A. Setting Target Selection and Monitoring Unit Operation Status" in page 18.)

The above figure shows the case of selecting "ZONE 3, GROUP 6".

2. Depress the “TIMER” switch. Every time the “TIMER” switch is depressed, the “TIMER” indication is turned ON and OFF alternately. The group with timer setting is operated according to setting schedule by the signal from the control timer.

The above figure shows the case of "ZONE 3, GROUP 6" setting timer operation.

NOTES:

The above indications show the case of setting operation mode for “ZONE 3, GROUP 6” The same setting procedure shall be performed for other groups.

9.5. OTHER LCD INDICATIONS

 Indication in Normal Conditions

The “EMERGENCY” is indicated when the emergency stop signal is input by the outside input function. During the emergency stoppage, indoor units are stopped and the operation by the remote control switch is not available.

Contact your distributor or dealer of HITACHI for details.

Turned ON

OPERATION PROCEDURE

The “DEMAND” is indicated when the demand input is set by the outside input function. The indication is indicated for the group with demand setting and the “DEMAND” indication flickers when the demand signal is input.

Contact your distributor or dealer of HITACHI for details.

Filter Clogging: When the “FILTER” indication is indicated, it shows that the air filter of the indoor unit is clogged. Clean the air filter. After cleaning, depress the “RESET” switch and the “FILTER” indication is turned OFF.

 Indication in Abnormal Conditions

a. The Run lamp (Red lamp) is flickered when there is

a group in abnormal condition. b. The “ALARM” is indicated on the LCD. c. The “

°” indication of the group in abnormal

condition is flickered. d. Depress the “GROUP” switch and select the group

with alarm, the indication of unit Nº, model code,

alarm code, and the normal indication, is repeatedly

indicated (there is a case that the model code may

not be indicated according to the unit model). e. In case that multiple units are in abnormal

conditions, the above indication is indicated by

turns. Check the contents of the LCD indication and contact

your distributor or dealer of HITACHI for details.

a. All the indications are disappeared. b. In case of unit stoppage due to the power failure, the unit is not started again after the power

recovery. Perform the starting operation again. c. In case of instant power failure within 2 seconds, the unit is automatically started again.

All the indications are disappeared, and the unit operation may be stopped for the device protection due to the electrical noise. Perform the starting operation again.

Flickering

In Case of Demand Setting

En el caso del ajuste de

solicitud

Turned ON

Encendido

I.U. Add.

Flickering

Turned ON

Ref. Nº

Model code

Alarm code

Hitachi PSC-A64S Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual